Colter-clamp



UNITED STATES ANDREW ELIAS VARNER, OF OXFORD, MISSISSIPPI.

COL'I'ER-CLAMP.

Specification of Letters Patent.

Patented Feb. 8, 1921.

Application filed August 2, 1920. Serial No. 400,747.

To all whom it may concern:

Be it known that I, ANnnnw ELIAS VAnNnn, a citizen of the United States, residing at Oxford, in the county of Lafayette and State of Mississippi, have invented certain new and useful Improvements in Colter- Clamps, of which the following is a specification, reference being had to the accompanying drawings. a

This invention relates to colter clamps and has for its object to provide a clamp of this character capable of being readily ap plied to a beam of a plow to properly support the colter.

Another object is to provide a clamp of this character which snugly engages the plow beam and maintains the colter in the desired inclined position.

Another object is to provide a clamp of this character whereby pressure may be brought to bear on the plow beam by means of a set screw disposed centrally of the clamp without danger of breaking or damaging the clamp when the screw is under tension.

Another object is to provide a clamp of this character wherein the colter is braced at two points so that objects encountered in the course of travel of the plow will not increase the size of the opening in the plow beam through pressure.

A stillfurther object of the invention is to provide a clamp of this character not only constructed to engage the outer surface of the plow beam but to be disposed in an inclined position so that the opening in the clamp will register with the obliquely disposed opening in the plow beam.

With the above and other objects in view, the invention consists in the improved construction and arrangement of parts to be hereinafter more particularly described, fully claimed and illustrated in the accompanying drawings, in which Figure 1 is a fragmentary side elevation showing the colter clamp applied to the plow, and

Fig. 2 is a vertical section through the clamp and plow beam.

Referring to the drawings, A designates a plow including the usual plow standard beam B having an opening G for the reception of the colter D. The opening G extends obliquely of the plow beam so as to maintain the colter in the desired inclined position.

In order to prevent the opening C from being enlarged through wear without lining the same, and also to firmly clamp the colter within the opening, I provide a novel form of clamp comprising a body member 5 including a fiat face 6 and a convex face 7. The ends 8 of the body are canted longi tudinally thereof, in parallel relation to each other. This permits the body member to position the clamp in accordance with the inclination of the obliquely disposed opening C. A videdln the central portion of the plate and registers with an opening 9 in the beam. Small openings 10 are provided adjacent the ends of the plate. Formed integral with or otherwise secured to each end of the body member is an extension 11, each extension having a slot 12 which registers with the slot in the adjacent extension and in view of the canted ends of the member 5, the slots while registering are disposed on an incline, the inner ends of the slots be ing canted so as to properly engage the colter D. The slots 12, are also arranged to register with the opening C to form a continuation thereof and prevent the colter from enlarging the opening C.

One of the extensions 11 is intended to engage the upper portion of the plow beam while the other extension is intended to engage the lower portion, the body member 5.

being engaged with one side face thereof. In this way, the clamp snugly embraces the plow beam regardless of its inclined position. The colter D is then disposed in the opening C and registering openings 12 of the extensions, in an inclined position.

Bolts 13 are passed through the openings 10 and corresponding openings in the plow beam, to connect the body member 5 to the beam. A set screw 14 is disposed in the openings 9 and 9 and is intended to engage the side face of the colter D.

After the colter has been placed in position the set screw ltis tightened so as to draw the slotted portions ofthe extensions slightly lateral of the ends of the opening U and in this way firmly secure the colter within the opening 0. In view of the fact that the body member and extensions partly surround the beam, the portion of the beam through which the colter extends is firmly braced and prevented from breaking should the colter encounter a heavy object. Furthermore, the length of the colter can be ad justed by loosening the screw 1t, without requiring the clamp to be removed from the beam. t

From the foregoing it will be readily seen that this invention provides a novel form ofcolter clamp adapted to snugly engage the conventional form of rectangular beam and at the same time hold the colter in an inclined position, the convex face 7 of the body member 5 permitting the set screw to be tightened to the extent desired without danger, of stripping the threads or breaking the body member 5 and at the same time permits the operator to tighten the screw lswithout coming in contact with adjacent parts of the clamp. It is obvious that the clamp may be cast in one piece or made in separate pieces as desired and in View of its novel construction it may be applied to any plow, without the use of special tools.

What is claimed is A device of the character described comee /n44:

prising a plow beam having an opening extending obliquely therethrough, a pianoconvex body member having a threaded opening extending through its central portion, the ends of said body member being canted longitudinally in'parallel relation to each other, extensions projecting from said.

ends in parallel relation to each other, said extensions having registering openings, said body member and extensions being arranged to embrace the plow beam, the opening in said extensions registering with the opening in the beam, a colter disposed in said openings, bolts extending through said, body member and the beam, and a set screw disposed in said threaded openings and adapted to engage one side face of the colter, whereby the colter is clamped to the beam within the opening of the beam.

In testimony whereof I hereunto aflix my signature ANDREW ELIAS VARNER. 

